Traumatic anterior dental injuries in Cuban preschool children

Abstract –  The purpose of this study was to determine the prevalence and distribution of traumatic dental injuries in 2–5 year-old children. It included 543 children of both sexes, all attending five urban nurseries in San José de las Lajas, Cuba. The prevalence of injuries was 34.2%. Type and prevalence of dental injuries was determined using Andreasen's classification. Enamel fracture was the predominant injury (67.1%). The maxillary central incisor was the most vulnerable to injuries. Boys (41.8%) experience more injuries than girls (26.8%).     

Traumatic injuries to primary teeth in Mexico City children.

The purpose of this retrospective study was to analyse traumatic injuries to primary teeth in children attending an emergency dental service in a pediatric hospital in Mexico City. A total of 563 children 6-mo to 7 yrs-old were treated during the period from January 1981 to December 1987. The 563 children presented 936 traumatic dental injuries. The most common type of trauma was soft tissue injury, followed by luxation and avulsion. More males presented with traumatic injuries (61.8%) than females (38.2%). In both sexes, maxillary teeth received more traumatic injuries than mandibular teeth. Children 2-3 yrs old presented the highest number of injuries (195) followed by the 4-5 and 6-7 year-olds. The largest number of injuries were seen during winter (36%) followed by summer (25%), spring (21%) and fall (18%).     

Traumatic dental injuries in children from private and public schools

The purpose of this retrospective study was to analyze, by age and sex, the prevalence of traumatic injuries to permanent incisors and canines, and their distribution according to type in children from private and public schools. The samples consisted of 1,200 children aged 7-16 yr old enrolled in 12 private and public schools from the city of Santo Domingo, Dominican Republic. Garcia-Godoy's classification for traumatic injuries was used. The prevalence of injuries in private schools was 21.3% and in public schools 16.3% (P less than 0.05). The higher prevalence in private schools is mainly due to the enamel fractures. All together, more boys injured their teeth than girls. The most common type of injury in both sexes in private and public schools was the enamel fracture followed by the enamel-dentin fracture without pulp exposure.     

Traumatic injuries to anterior teeth in Italian schoolchildren: prevalence and risk factors

Abstract In the present study, the prevalence of traumatic injuries to anterior teeth in 824, 6- to I 1-year-old, schoolchildren from Rome (Italy) and the relationship between injuries and predisposing factors were evaluated. Prevalence value of the study-population was 20.26%. This value is higher than those reported in surveys performed in Italian emergency dental services, but it is similar to those of retrospective studies from other countries. The highest prevalence was found among 9-year-old boys (33.69%); the M/F ratio was 1.64. The percentage of injuries with unknown cause (21.46%) was higher than that of other studies. This may be because most of injuries were slight (64.39% of injuries were enamel fractures) and it is likely that children and their parents were not worried about them, when they happened, so that they did not seek urgent dental care - this helps to explain the prevalence values of this and other retrospective studies, which are higher than those from emergency services - and, when interviewed, they did not remember the circumstances of the traumatic event. Using the Mantcl-Haenszel's Odds Ratios stratified for age and sex, injuries were related to individual predisposing factors (overjet larger than 3 mm: OR=2.57, p = 0.0001, short upper lip: OR=2.23, p=0.0001 and upper medial incisor protrusion: OR=3.95. p = n.s.), but not to children's trauma predisposing behaviour (OR=0.92, p = n.s.). Serious injuries, however, happened lo children without predisposing factors and were caused by strong impacts, suggesting that individual risk factors may not affect these type of injuries.     

Prevalence and distribution of traumatic injuries to the permanent teeth of Dominican children from private schools

Abstract The purpose of this study was to describe by age and sex, the prevalence, etiology, distribution and type of injury to permanent incisors of children from private schools of Santo Domingo, Dominican Republic, located in the Caribbean archipelago. The sample consisted of 1633 children, 5–14 yr enrolled in several private schools of Santo Domingo. The prevalence of injury was 10.0% (5.0% in boys and 5.1 % in girls). The largest number of injuries was found in the 5- and 6-yr-old children, followed by the 7- and 8-yr-olds. There was no significant difference in the number of teeth injured in both sexes (0.1 %). The most common type of injury in both sexes was concussion (42.7%) with no significant difference between sexes (5.7%). The most common cause of injury in both sexes was falling against an object (77.8% in boys and 78.3% in girls). Most boys injured their teeth playing baseball (86.4%) and most girls playing on roller skates (72.3%). More girls suffered injuries (not significantly) with the ratio of boys to girls being 0.91 to 1.     

Traumatic dental injuries in nursery schoolchildren from Baghdad, Iraq

The purpose of this study was to determine, by age and sex, 1) the prevalence of traumatic injuries to primary incisors and canines, and 2) their distribution according to type in nursery schoolchildren from the city of Baghdad. The sample consisted of 2389 children aged 1-4 yr enrolled in 39 nursery schools. The prevalence of injuries was 24.4% (24.5% in boys and 24.3% in girls). The largest percentage of injuries was demonstrated by the 4-yr-old children. There were no differences between boys and girls in their susceptibility to traumatic dental injuries. Combining both sexes, the most common type of injury was the enamel fracture (83.8%), followed by concussion (7.4%) and enamel-dentin fracture (6.2%).     

Supernumerary teeth formation following subluxation of primary incisors

Supernumerary teeth are reported to occur in both primary and permanent dentitions, but their exact aetiology remains unclear. To date, there have been no documented reports of supernumerary teeth formation subsequent to traumatic dental injuries (TDIs) to the primary incisors. This case report illustrates such an unusual consequence where a supernumerary tooth developed subsequent to a subluxation injury to teeth 51 and 61 in a 4‐year‐old Caucasian girl. This emphasizes the importance of reviewing TDIs, as well as providing parents with sufficient information about possible sequelae at the time of trauma. Nevertheless, it also provides an excellent basis for future investigations, which are essential to establish this correlation and to prove causation.     

Traumatic dental injuries in schollchildren from Santo Domingo

The purpose of this retrospective study was to analyze, by age and sex, 1) the prevalence of traumatic injuries to permanent incisors and canines, and 2) their distribution according to type in schoolchildren from the city of Santo Domingo, in the Southern part of the Dominican Republic, which is located in the Caribbean Archipelago. The sample consisted of 1200 children aged 6-17 yr enrolled in eight public and private schools. Garcia-Godoy's classification for traumatic injuries was used. The prevalence of injuries was 12.2% (13.1% in boys and 11.2% in girls). The largest number of injuries was presented by the 14-yr-old children (17.4%) followed by the 13- and 12-yr-olds (15.7% and 11.7%, respectively). More boys injured their teeth than girls (not significantly) with a boy-to-girl ratio of 1.1:1. The most common type of injury in both sexes was enamel-dentin fracture, followed by enamel fracture.     

Traumatic dental injuries in preschoolchildren from Santo Domingo

The purpose of this retrospective study was to analyze, by age and sex, 1) the prevalence of traumatic injuries to primary incisors and canines, and 2) their distribution according to type in preschoolchildren from the city of Santo Domingo, in the Southern part of the Dominican Republic, which is located in the Caribbean Archipelago. The sample consisted of 800 children aged 3-5 years enrolled in 24 public and private preschools. The prevalence of injuries was 35% (32.8 in boys and 37.2 in girls). The largest number of injuries was presented by the 5-year-old children. More girls suffered traumatic injuries than boys (not significantly) with a boy-to-girl ratio of 0.9:1. Combining both sexes, the most common type of injury was the enamel-dentin fracture (32.6%), followed by enamel fracture (31.2%) and concussion (23.5%).     

Traumatic dental injuries and associated factors among Brazilian preschool children

Abstract –  The main objective of this study was to assess the epidemiology of traumatic dental injuries (TDI) to the primary teeth of preschool children and second, to investigate whether TDI were related to anterior open bite and, third, whether TDI are related to socio-economic circumstances in an urban Brazilian population. A clinical examination was performed during the National Day of Children's Vaccination. TDI were classified according to the modified classification proposed by Ellis. In addition to those criteria the presence of tooth discoloration was recorded. An interview was carried out with mothers or guardians. The data collected included mother's level of education and living conditions. The prevalence of TDI was 9.4%. The maxillary central incisors were the most affected teeth. Most children with a TDI experienced traumatic injuries to one tooth (6.3%), while 2.8% had two and 0.4% had three traumatized teeth. The most common crown fracture was in enamel only (68.8%), followed by crown fracture of enamel and dentin (13.8%). Missing teeth following trauma occurred in 10.9% of those with TDI. The prevalence of tooth discoloration was 5.1%. Children with anterior open bite had twice the level the level of TDI compared to those with normal occlusions ( P  = 0.001). Socio-economic factors were not statistically significantly associated with the occurrence of TDI. The prevalence of dental injuries in Brazilian preschool children was low. Children with anterior open bite experienced more dental injuries. Neither of the indicators of socio-economic status was related to the prevalence of TDI.     

Traumatic dental injuries in Brazilian preschool children

Abstract  – The purpose of this study was to determine the prevalence and distribution of traumatic injuries to primary anterior teeth in children from zero to 6 years old, all attendees in 28 public nursery schools in Canoas (Brazil). A total of 1545 boys and girls participated in the study. The children were clinically examined for signs of trauma according to Andreasen's classification. Traumatic injuries were identified in 35.5% of children. The largest percentage of injuries was demonstrated by 3–4-year-old child, with no significant difference between boys and girls. The maxillary central incisor was the most vulnerable to injury, without differences between the right and the left side. Single tooth injury was predominant in all age groups. Crown fractures represented 83% of all traumatic injuries. Our findings emphasize the importance of encouraging parents to visit the dentist with their child at an early stage. Furthermore, parents and educators should be advised about prevention of traumatic injuries and actions to be taken in case of an accident.     

Primary teeth traumatic injuries at a private pediatric dental center

Abstract The purpose of this study was to analyze primary teeth traumatic injuries at a private pediatric dental center. A total of 114 children with 196 traumatized teeth participated in this study from 1980–1984. The most common injury was concussion. The 1–2 year olds presented the highest number of injuries (p<0.01). Falling against an object was the most common cause of injury in both sexes. Most of the injuries occurred inside the home. July and August were the months that showed the highest number of children with injured teeth; 38.7% of the children visited the dental office the same day of the injury, while 37.8% did so 1–7 days later.     

Epidemiologic study of joined primary teeth in Finnish children

The frequency of geminated and fused primary teeth was studied in a sample of 1141 Finnish children aged 3-4 years. The prevalence was 0.7%. All the joined teeth were found in the anterior area of the mouth. In seven cases the diagnosis was a fusion of two separate teeth, and in one case it was a gemination of a single tooth. A correlation between joined teeth in primary dentition and numerical variations of teeth in permanent dentition was noted in three cases.     

Traumatic injuries to anterior teeth among schoolchildren in Malaysia

Abstract – Evidence of traumatized permanent incisors was recorded as part of a national oral health survey of schoolchildren in Malaysia. A total of 4085 schoolchildren aged 16 years were examined. The prevalence of injury was 4.1% and it was significantly higher in males than females, with a ratio of 2:1. Almost 75% of the subjects had one tooth affected. Out of a total of 200 fractured teeth, 78.0% involved the maxillary central incisors. A high level of untreated traumatized teeth (89%) was noted. However, of the untreated traumatized teeth, only 9% presented with problems such as discoloration of tooth, sinus or abscess formation.     

Follow-up study of permanent incisors with enamel fractures as a result of an acute trauma

Abstract – The present investigation evaluated the prognosis for vitality after and acute trauma in 2891 permanent incisors with enamel fracture as the only damage, and in 476 incisors with enamel fracture combined with other symptoms on the damaged tooth. Pulpalnecrosis developed in 57 teeth (1.7%). Acute treatment in connection with enamel fracture was only performed in half of the cases and had no importance on vitality. The combination of enamel fracture and concussion or mobility resulted in pulpal necrosis in 8.5% of cases, and cases involving both mobility and concussion meant pulpal necrosis in 14% of teeth. The findings clearly illustrated that an enamenamel fractures is an injury with an extremely favorable prognosis, and that the risk group can be narrowed to cases of combined injuries involving the supportive tissue.     

Treatment of traumatized primary teeth: a conservative approach

This retrospective study examined some different types of treatment to primary teeth. The aim of this study was to assess the treatment of traumatized primary teeth and the importance of a long-term follow up. Brazilian children in the age group of 1-4 years from a baby clinic took part in the study. Three hundred and fifteen patients suffered some type of traumatic injury, a total of 338 affected teeth. Data were registered in specific records and submitted to statistic analysis. The most prevalent type of treatment was monitor only (85%) followed by tooth extraction and endodontic procedure. Invasive treatments were performed in case of severe traumas, usually 6 months after the injury. We verified that a careful follow up might be the preferential choice to the treatment of traumatic primary teeth even in some severe cases.     

Traumatic injuries to permanent incisors

Abstract The prevalence of traumatic injuries to permanent incisors and their distribution according to type and some clinical factors, were analysed in a total population of 2798 patients, aged 6–21 years, examined over a 5-year period in the Dental Clinic of the University of Verona, Italy. The material consisted of case histories and radiograms taken during the examination of injured teeth. The number of injured patients was 178 (131 males and 47 females), the number of injured incisors was 326. The prevalence of injuries was 7.3%. A very large number of dental injuries occured to children aged between 6 and 13 years. The ratio of boys to girls was 2.7:1. Most frequent causes of injuries were falls and traffic accidents. Most injuries involved two teeth. About 80% of the teeth were maxillary central incisors. The most common type of injury was non complicated crown fracture. In 87 cases (48%) there was an associated injury to soft tissue. Alveolar fractures occurred in 22 cases (12%). Traumas involving periodontal ligament constituted nearly 40% of the total. This study noted the following points: 1) preventive education programs should be instituted in the region, directed at parents and school teachers, to inform them about the problems of dental trauma and to obtain cooperative attitude to treatment and good motivation in controls; 2) the necessity to unify the diagnostic and therapeutic protocol to provide reliable information in clinical investigations, to permit valid comparison with other studies and to improve the long-term prognosis of many cases.